Non-warping tray



R.R.LUNDY. NON-WARPING TRAY.

APPLICATION FILED AUG-2| I919.

Patented Dec. 16,1919.

3 SHEETS-SHEET I.

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NON-WARPING TRAY.

APPLICATION FILED Aus.2. 1919.

1,325,256. Patented Dec. 16,1919.

BSHEETS-SHEET 2. m 'T HIH1CLHHFIIFI I I 7 fl 1 W 1' P I 6 V NW1! /2 III 1' I R. RILUNDY.

NON-WARPING TRAY.

APPLICATION FILED AUG.2, 1919. 1,325,256. Patented Dec.16;1919. 3 SHEETS-SHEET 3.

mu'rnn srnrs ATE ROBERT RGY LUNDY, 0F DETROIT, MICHIGAN.

NON-WAR'PING TRAY.

Application filed August 2, 1919.

To all whom it may concern:

Be it known that I, Bonner ROY LUNDY, a subject of the King of Great Britain and Ireland, residin at Detroit, in the county of Wayne and tate of Michigan, have invented certain new and useful Improvements in Non-l Varping Trays, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates to trays and is designed particularly for use for holding hot objects, such as forgings, castings, etc. One object of the invention is to provide a tray which is non-warping. Another object is the provision of hollow members forming the bottom of the tray, these hollow members further forming opposite sides of the tray. A further object is the provision of a con struction which is adapted to be moved either by conveyer systems or by being mounted upon wheels. Other objects of the invention reside in the novel arrangements and combinations of parts as more fully hereinafter set forth.

'In the drawings:

Figure l is a side elevation of a construction embodying my invention;

Fig. 2 is an end elevation thereof;

Figs. 8 and 4 are respectively side and end elevations of a modified construction;

Fig. 5 is a top plan view of another modi fied construction;

Figs. 6 and 7 are respectively side and end elevations of Fig. 5;

Figs. 8 and 9 are respectively side and end elevations partly in section of still another modified construction;

Figs; 10 and 11 are respectively side and end elevations of a further modification.

As shown in Figs. 1 and 2, 1 represents standards, preferably formed of angle iron, and 2 cross-connections between the standards and. suitably secured thereto as by riveting. These cross-sections with strndards form the frame and in the present instance the cross-connections also form the sides of the tray. In detail, the cross-connections are formed of material such as sheet metal, of channel cross-section, their webs being secured to the flanges of the standards and their flanges extending inward from the standards and being mitered at the ends. 3 is a series of tubes in parallelism to each other and extending between opposite crosseonnections or side plates 2 between the standards. These tubes are secured to the Specification of Letters Patent.

the.

Serial No. 315,001.

side plates by suitable means, such as the rivets 4: extending through the lower horizontal flanges 5 of the side plates and into the tubes, the arrangement being such that the tubes form a uniform surface for en gagement with a truck or the like, which surface is in a common plane located beneath the side plates. The standards are extended above the side plates 2 and the extensions are apertured as at 6 for the purpose of permitting suitable engaging means upon conveyer systems or overhead cranes engaging the tray to raise and convey the same. The standards 1 are also provided with apertures 7 beneath the side plates for the same purpose.

Figs. 3 and 4 show a modification in which the side plates for the tray comprise flat metal sheets 8 secured to angle cross bars 9 and 10 between the standards 1 and secured to the standards respectively at the middle and upper ends thereof, as by welding or riveting. The series of tubes 3 are secured to the horizontal flanges 11 of the opposite angle bars 9 in the same manner as shown in Figs. 1 and 2.

As shown in Figs. 5, 6 and 7 the tray comprises the standards 1 formed of angle iron to which are secured intermediate their length the end angle bars 12 and at their top the angle bars 13 extendin at both the sides and ends of the tray. hfounted upon the end angle bars 12 and positioned within the sides of the tray are the angle bars 14 extending lengthwise of the tray and par- .allel to each other. The horizontal flanges of the angle bars 13 are suitably apertured as are also the vertical flanges of the angle bars 1% for respectively receiving the legs and bases of the series of U-shaped tubes-15, thereby positioning the latter. Series of tubes 16 form the ends ofthe tray, these tubes extending through the apertures in the end angle bars 13 and resting upon the horizontal flanges of the angle bars 12 and having their lower ends positioned between the vertical flanges of the bars 12 and the end U-shaped tubes 15 being preferably securely held by welding or brazing to the angle bars 12.

The construction shown in Figs. 8 and 9 difiers from that shown in Figs. 5, 6 and 7 principally in thatthe series of U-shaped tubes 17 and the end tubes 18 are in engagement with each other and are fastened to each other as by being welded or brazed.

Patented Dec. 16, 1919.

The standards 1 may also be welded or brazed to the series of tubes 17 and 18. Furthermore, the U-shaped tubes 17 may rest upon the side rods 19 extending between the end standards and preferably at the points of bending of the tubes. Also the series of tubes 18 forming the ends of the tray have their lower ends shaped to fit upon the end tubes of the series 17, these lower ends being suitably secured to the end tubes as by being welded or brazed thereto.

Figs. 10 and 11 show a construction of tray similar to that described in Figs. 5, 6 and 7, with the exception that the tray is mounted upon wheels. Specifically, the standards 1 are mounted upon the parallel side sills 20 extending lengthwise of the tray, these side sills suitably carrying the wheels 21 and 22, the latter being pivoted for permitting of readily directing the travel of the tray. The wheels 21 extend beneath the vertical legs of the series of U- shaped tubes 23 and above the plane of the base of these tubes, this being possible because of the space secured, due to the bends of the tubes 23. lVith this arrangement it is seen that the height of the tray above the floor is reduced with the same size of wheels carrying the same. The handle member 24 is provided comprising the inverted U- shaped bar which is adapted to have its lower ends inserted into the upper ends of an end tube of the U-shaped series of tubes 23. Suitable means, such as the pins 25 extending transversely of the depending legs of the handle 24 limit the downward movement of the handle in the end tube.

In the construction shown in Figs. 5 to 10 inclusive suitable cooling fluid, such as water, may be inserted in the series of tubes to fill the same, thereby assisting in maintaining the tray cool and preventing the warping thereof.

It will be readily seen that I have provided a noirwarping tray having sides and a bottom which are arranged so that they will not warp when carrying hot articles. This is due particularly to the fact that the bottom of the tray is formed of tubes, which contact with the objects. Further, the trays are adapted to be stationary or movable.

That I claim as my invention is:

1. In a tray, the combination with a frame, of a series of non-warping tubes mounted on said frame in proximity to each other and forming the bottom, and means on said frame for forming the sides.

2. In a tray, the combination with a frame, of a series of U-shaped tubes mounted on said frame, and forming the bottom and opposite sides of the tray.

3. In a tray, the combination with a frame, of a series of vJ-shaped tubes mounted on said frame in parallelism to each other and forming the bottom and opposite sides, and members mounted on said frame and forming the opposite ends of the tray.

4. In a tray, the combination with a frame, of a series of U-shaped tubes mounted on said frame and forming the bottom and sides, and series of tubes forming the opposite ends of the tray.

5. In a tray, the combination with a frame, of a series of iJ-shaped tubes mounted on said frame and forming the bottom and sides, and a series of tubes resting upon the end tubes of said first-mentioned series of tubes and extending parallel to their legs and transversely of their bases and fitting upon the latter.

6. In a tray, the combination with a frame, of a series of non-warping tubes mounted on said frame in parallelism to each other, said tubes presenting a uniform surface beneath said frame for engagement in one plane.

7. In a tray, the combination with standards, of members forming the sides of the tray, and a series of non-warping tubes rigidly secured to said members and forming the bottom of the tray.

8. The combination with a frame formed of parallel side sills, of a series of U-shaped tubes extending transversely of said side sills and forming the bottom and opposite sides and ends of the tray, and wheels mounted upon said side sills and extending adjacent to and under the legs of the U- shaped tubes.

In testimony whereof I affix my signature.

ROBERT ROY LUNDY. 

